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Board of Management.

Günter Mayer.

Günter Mayer has been a manager at our sister company, skip supplier PKM-Muldenzentrale GmbH, since 2010. In 2017 he joined the management team at RCH Recycling Center Himberg GmbH. In addition to these roles, he acts as an authorised signatory for Koller Transporte-Kies-Erdbau GmbH.

Andreas Vock.

Andreas Vock took on his first roles as a commercial director and manager in the fields of environmental engineering, waste treatment and disposal back in 2002. He has been a manager at RCH Recycling Center Himberg GmbH since 2017. In addition to this role, he is on the management teams of ABW Abbruch-, Boden- und Wasserreinigungsgesellschaft mbH, Koller Transporte–Kies–Erdbau GmbH, Johann Koller DeponieBetriebs GmbH, GHS Umwelttechnik GmbH, PKM-Muldenzentrale GmbH and Getina Versicherungsvermittlung GmbH.

Günter Mayer Managing Director
Andreas Vock Managing Director


Tamara Grandits Commercial manager
Mario Pronegg Head of maintenance
Andreas Winkler Production manager

Commercial administration.

Ksenija Nebenführ Sales/backoffice/billing


The secret of our success: a perfectly coordinated team.